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Vulnerability record · CVE-2021-37201 · published 14 September 2021

CVE-2021-37201: Siemens sinec network management system cross-site request forgery vulnerability

Siemens · Sinec Network Management System

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP1). The web interface of affected devices is vulnerable to a Cross-Site Request Forgery (CSRF) attack. This could allow an attacker to manipulate the SINEC NMS configuration by tricking an unsuspecting user with administrative privileges to click on a malicious link.

8.8 CVSS 3.1 High EPSS 0.43% · top 65.4% CWE-352 · Cross-site request forgery
8.8CVSS 3.1 base score, v2 6.8
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP1). The web interface of affected devices is vulnerable to a Cross-Site Request Forgery (CSRF) attack. This could allow an attacker to manipulate the SINEC NMS configuration by tricking an unsuspecting user with administrative privileges to click on a malicious link.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-330339.pdf PatchVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-330339.pdf PatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-37201), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.